Metal can package question...

[--M]

    I have been working on an ASM-1 myself. I am NOT in anyway an expert on
this but with that disclaimer I will say teh following. I looked at the
schematic for the the MAT-02 and checked it against the ASM-1 schematic and
followed the traces on the PCB and decided the MAT-02 must go with the tab
pointing up towards the top of the board ( you would be holding the board with
the power supply on the right and VCOs on the left ).
    The the other little transister guy is kinda sandwiched in a bad spot I had
to kinda bend his leads and install him at an angle to make it fit above that
2200pf polyester cap.I followed the same procedure when placing this transister
of checking the pin out for the transister and matching it against the
schematic and then following the traces on the board. On mine the tab ended up
facing up again but I used a 2N4391.
    I got a pair of MAT-02s as samples from analog devices for free what a
great deal. does anyone know how often they will do this? Its not that I want
to finagle these guys but these parts seem hard to get and expensive. The
samples came in about a week with little effort on my part and it looks like I
might need a few more for my next project.

--M

RevTor at aol.com wrote:

> hello all,
> (Try Paia for stomp box cases...  www.paia.com)
>
>     Okay, I am resuming finishing my ASM  project and I think I remember not
> being
> too sure about the pinout of the 3140's MAT 02's and 2n45856's in my
> oscilators.  My question is regarding the orientation of the pins with
> relation to the metal tab on the can package.  Do they read (with the tab at
> 12'oclock) form 1-8 in a clockwise driection or from 1 to 8 in a
> counterclockwise direction?  thanks, I just dont want to blow anything up on
> the first power up....
> Any quick hints about setting the trim pots?  (I have no scope...I dont even
> have a DMM!! : )   Anyone got a used scope that they want to sell cheap?)
> I think I read something a few years back about using headphones to roughly
> set the levels??  Bad idea?
> Thanks list..
> ~Steve M